Bronzing-machine



(N0 Modem 2 sheets-sheen 1.v H. R. SILLMAN.

BRONZING MACHINE.

No.'277,621. Patented May 151883.

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H. R. VSILLMAN. BRONZING MACHINE.

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UNITED STATES BATEN-T Price.

HENRY R. SIIJLMAN, OF BROOKLYN, NEW YORK.

BRONZlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 277,621, dated May 15, 1883,

i Application tiled October 3l, 1882. (No model.)

.To all whom it may concern:

' Be it known that I, HENRY R. SILLMAN, a citizen of the United States, residing at the city of Brooklyn, in the county of Kings and State of New York, have invented a new and usei'ul Improvement in Bronzing-Machines, of which the following' is a specification.

My invention consists of a. hopper eXtend ing across the frame of the machine. The said hopper is divided into two apartments, one above the other. The lower part consists ot' a hollow cylindrical casing having perforations or slotted openings on the top and bottom thereof', over which slides with corresponding openings operate in a manner to properly regulate the iiow of the bronze-powder.

My invention also consists of a slotted slide provided with a raclrbar at each end, which engages with small gear-wheels mounted on a shaft running lengthwise therewith.

Figure l represents a sectional elevation. Fig. 2 represents a vertical section through XX. Fig. 3 represents a sectional plan of the vupper chamber jot' the hopper, with the movable slide in the bottom thereof. Fig. 4l represents a plan of the movable slide. Fig. 5 represents a sectional plan of the lower chamber, showing the movable slide in the bottom thereof'. Fig. 6 represents a crosssection of the hanged endless apron. Fig. 7 represents the brush-cleaner in detail.

In the drawings, A is the hopper, divided into two chambers, B and B'.

C is the movable slotted slide placed at the base of the upper chamber. The said slide is moved to and fro, in order to supply the brush l) ofthe lower chamber, R', with bronze-powder, which falls from the chamber B. The brush D is constantly revolving, thereby car rying the bronze-powder around the opening of the slide E, under the base ot' the lower chamber, R', from which place it falls to the t'eltroller F, the function of which is to spread the bronze-powder evenly on the surface ofthe paper G. The slide Eis provided with rackbars LI H, each ot' which engages with gearwheels I I, mounted on the shaft J, which controls the movement of the said slide.

K is the slotted tongue, iliade integral with vents the bronze-powder from being pushed from the surface of the. paper while across the said apron.

N is the double -inclined chute placed beneath the upper duster, O. The said inclines guide the falling bronze-powder to the trough P, in which is placed a spiral conveyer, Q, for conveying the bronze-powder to the end ot' the said trough, from which point it falls to the inclines R R, thence to the bottom of the machine, from whence it is carried forward by the Scrapers S, mounted on the chains T T of the sprocket-wheels U. The said chains are supported in the middle b v a pair of rollers, V V, the object of which is to prevent the chain from sagging', thereby reducing the power, which otherwise would increase.

I do not coniine myself to any particular means for operating the slide C, located on the base ot' the upper chamber, B. I am aware that it can bc made so as to be operated auto` matically by steam or other power; or it can be operated by hand.

I am also aware. that bronziiig-machines have been provided with a movable slide beneath the feeding brush, the said slide being adjusted by means of a screw. This construction is objectionable from the fact that it is not provided with means for preventing the full weight of the bronze from resting on the feeding-brush, which in practice frequently stalls the same,vthus preventing the proper ow ot' the bronze-powder. construction, as stated above, is that ot' adliusting the slide by means of a screw, which does not move the slide quick enough while the machine is in motion, thus causing too much or not enough to flow. The objections, as herein stated, are obviated by my invention, as described hereinbefore.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a bronzing-machine, a self-feedi ng hopper consisting of a hollow cylindrical casing moving.

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Further objection to this having perforations or slotted openings in the top and bottom thereof, and provided with slides to allow the bronze to be fed to the pa- `per by means of ai brush placedy Within the hollow of the said casing, substantially as shown and described.

2. In a bronzing-machine, the movable slide providedvwith rack-bars at each end thereof, Which engages with and is controlled by :i pair of gear-Wheels, and the slotted tongue, with set-screw for tightening the said slide, in combination with a. hollow cylindrical casin g containing the feeding-brush of a bronzingmachine, substantially as shown and described.

3. The double inclined chute N, trough P, 15 with spiral conveyer'Q, and inclined planes R R', in combination with dusters O O of a bronzing-machinc, substantially as shown and described. e

In testimony that I cleiln the foregoing vI zo have hereunto set my hand:

HENRY n. siiZLMAN.

Witnesses O. G. PERKINS, A. E. FIRMIN. 

